//
//  Student.h
//  类的扩展
//
//  Created by dllo on 16/7/13.
//  Copyright © 2016年 dllo. All rights reserved.
//

#import <Foundation/Foundation.h>
//规定了协议内容
@protocol GetMacBook <NSObject>
@required

- (NSString *)buyMacBook:(NSString *)money;
@optional
//开发票
- (void)drawBill;
@end

@interface Student : NSObject
//委托方的写法
//设定委托方
@property(nonatomic,weak) id <GetMacBook> delegate;
//查看微信时
- (void)seeWeChat;

NSMutableDictionary
@end



